nobody I know, or don't know, has EVER texted me first to see if it's ok to call.........I follow this rule: if I want to answer, I do, and if I don't want to, I don't......I realize robo calls and all are frustrating (have been getting a ton lately), but are you now going to have to handle both a text and a call??....you may want to get caller ID if you don't have it already......